I recently started using the Peer Review feature with assignments and found it to be a great way for students to edit or asses each other's work and offer feedback and suggestions. I have used it primarily in math class when I do daily review at the start of the lesson.
I post an image or a PDF of a daily review sheet from the teacher resources and set the Submission Type for Online. I tend to have them do the work in their notebook and usually set the Online type to Text. This way they just type their answers into the assignment. This cuts down on slow typing and trying to type out their work for the problem.
After clicking the "Require Peer Review" option, you will have to decide if you want to manually or automatically assign the peer review. I have been doing this manually and assigning peers based on students that I know work well together and would feel comfortable having that person review their work. The idea of peer review with any subject is new for some students, so I want them to feel comfortable with the process and who is working with them.
When the rest of the settings for the assignment are done, you will be able to click on the Peer Review section of the menu. You can assign several peer reviews to each student, but I have only been doing one per student.
When the students are finished with their assignment, they will be able to click on the name of the peer they are assigned to and see what they have submitted. They must leave at least one comment in order to save their review and have it posted. I work with elementary students and we are still practicing netiquette and good digital citizenship. I stress to them the importance of being positive with their reviews and keeping it on-topic. For example, if all the problems are correct they simply write "All correct" in the comment section. If one answer is wrong, they write "Check #7 and submit again".
The Peer Review feature gives students the opportunity to collaborate, review work, and explain math concepts to others in ways that might be different from mine. I hope that this feature will make students feel safe and confident with sharing their work with others. I feel that this feature is a great way to not only review and assess math concepts, but to also establish a sense of security and respect online and in the classroom.